APA (7th ed.) Citation

O'Cochlain, R. S. (1956). Count O'Donell and the Austrian emperor.

Chicago Style (17th ed.) Citation

O'Cochlain, Rupert S. Count O'Donell and the Austrian Emperor. 1956.

MLA (9th ed.) Citation

O'Cochlain, Rupert S. Count O'Donell and the Austrian Emperor. 1956.

Warning: These citations may not always be 100% accurate.